Re: Current kernel with http://gnats.netbsd.org/39965 and pmap patches

["David Ross" <dross%pobox.com@localhost>]

With the ATARITT kernel below I'm getting a freeze immediately on boot.  No 
text, just an immediate freeze.  I tried twice and it happened the same both 
times.

I went to try the latest HEAD kernel (200812270002Z) and I was able to 
successfully boot it up to the root device prompt.  I'm not sure the changes 
have been checked in to HEAD and I'm out of time for tonight so I didn't go 
any further yet.

David Ross
dross%pobox.com@localhost

----- Original Message ----- 
From: "T. Makinen" <tjamaloo%gmail.com@localhost>
To: "Izumi Tsutsui" <tsutsui%ceres.dti.ne.jp@localhost>
Cc: <port-atari%netbsd.org@localhost>; <abs%netbsd.org@localhost>; <dross%pobox.com@localhost>; 
<jdc%coris.org.uk@localhost>; <f.g.lukas%web.de@localhost>; <mhitch%montana.edu@localhost>
Sent: Friday, December 19, 2008 6:46 PM
Subject: Re: Current kernel with http://gnats.netbsd.org/39965 and pmap 
patches


> On Fri, Dec 19, 2008 at 2:47 PM, Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost> 
> wrote:
> > tjamaloo%gmail.com@localhost wrote:
> >
> > > I tried kernel with m68k/m68k/pmap_motorola.c and it failed with 030 as 
> > > well.
> > > Kernel prints following error:
> > > panic: pool_put: buf8k: page header missing.
> >
> > Such pool panic generally happens on memory corruptions.
> > Could you see any more info with options DIAGNOSTIC?
>
> I fixed atari/dev/md_root.c which had problem with DIAGNOSTIC kernel 
> (stopped
> at assertion: bp->b_refcnt > 0). Funny thing is that problem seems to be
> root cause for 68030 cpu installation panics and it no longer exist with 
> fixed
> /atari/dev/md_root.c. I'm no longer wondering why kernel panicked only 
> with
> installation :)
>
> Here's links to patched ATARITT and FALCON kernels:
> http://koti.welho.com/tmakinen/atari/netbsd-current-ATARITT-20081220.gz
> http://koti.welho.com/tmakinen/atari/netbsd-current-FALCON-20081220.gz
>
> > BTW, is the LOCK errors described in PR 39965 gone with
> > accounting idepth patch? If so we should apply the changes first.
>
> I never experienced LOCK errors. Maybe David R. can verify if that problem
> still exist ?
>
> Index: ../dev/md_root.c
> ===================================================================
> RCS file: /cvsroot/src/sys/arch/atari/dev/md_root.c,v
> retrieving revision 1.26
> diff -u -r1.26 md_root.c
> --- ../dev/md_root.c 4 Nov 2008 17:08:45 -0000 1.26
> +++ ../dev/md_root.c 20 Dec 2008 00:47:23 -0000
> @@ -233,6 +233,7 @@
>  bp->b_bcount = rsp->chunk;
>  bp->b_data   = rsp->bufp;
>  bp->b_error  = 0;
> + bp->b_refcnt++;
>
>  /* Initiate read */
>  (*rsp->strat)(bp);
> @@ -313,6 +314,7 @@
>  bp->b_bcount = min(rsp->chunk, nbyte);
>  bp->b_data   = buf;
>  bp->b_error  = 0;
> + bp->b_refcnt++;
>
>  /* Initiate read */
>  (*rsp->strat)(bp);
>
> -Tuomo